![](https://visitvalgavalka.com/wp-content/uploads/2019/04/Spigu-ala-un-avots-Ruceklitis_C.jpg)
Caves length – 7,8 m, width – 2 m, height – 2 m. From this cave is coming out a source – Rūceklītis. Once a year – in May, it is buzzing like a bee. The scientists are saying that this sound arises when the water is falling into underground lake.
Address: Kārķu pagasts
GPS: 57.7843090, 25.5626315
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